linux-kernel - 4.0-rc1 perf build error "builtin-kmem.c:322: error: declaration of ‘stat’ shadows a global declaration"

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Date:	Thu, 23 Apr 2015 17:38:49 -0700
From:	Vinson Lee <vlee@...pensource.com>
To:	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	linux-perf-users@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: 4.0-rc1 perf build error "builtin-kmem.c:322: error: declaration of ‘stat’ shadows a global declaration"

Hi.

4.0-rc1 commit 0d68bc92c48167130b61b449f08be27dc862dba2 "perf kmem:
Analyze page allocator events also" introduced a build error with
older toolchains.

For example, this build errors occurs on CentOS 6.

  CC       builtin-kmem.o
cc1: warnings being treated as errors
builtin-kmem.c: In function ‘search_page_alloc_stat’:
builtin-kmem.c:322: error: declaration of ‘stat’ shadows a global declaration
/usr/include/sys/stat.h:455: error: shadowed declaration is here
builtin-kmem.c: In function ‘perf_evsel__process_page_alloc_event’:
builtin-kmem.c:378: error: declaration of ‘stat’ shadows a global declaration
/usr/include/sys/stat.h:455: error: shadowed declaration is here
builtin-kmem.c: In function ‘perf_evsel__process_page_free_event’:
builtin-kmem.c:431: error: declaration of ‘stat’ shadows a global declaration
/usr/include/sys/stat.h:455: error: shadowed declaration is here

Cheers,
Vinson
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